A checklist of 112 species of shore flies (Ephydridae, Diptera) recorded from Finland is presented. Comparing this to the list of Hackman (1980), 52 changes are made: 25 species are added (all but one recorded after 1980), 18 misidentifications are deleted, 5 junior synonyms are replaced and 5 updated generic combinations are given.

Checklist, Finland, Diptera , Ephydridae

Shore flies (Ephydridae) are dark coloured, dull to shining, 1–6 mm long flies. Most species develop in aquatic or semi-aquatic conditions, feeding of algae, bacteria, yeasts or even decaying animal matter and excrements; or they are phytophagous and mining in leaves or stems. The group is divided into 5 subfamilies and 19 tribes (Zatwarnicki 1992), of which 15 could potentially be found in Finland.

Hackman (1980) originally listed 105 species. Zatwarnicki (1997) corrected the synonymy and generic placement of some species. Compared to Hackman (1980)the present list adds 25 species and removes 18 misidentified species (mostly Hydrellia). Five junior synonyms in Hydrellia, Philygria, Scatella and Scatophila are replaced; four species of Ditrichophora are combined with Gymnoclasiopa and one species of Lamproscatella with Haloscatella. Two species are endemic for Finland: Psilopa nitidifacies Frey, 1930 (note that this was omitted by Hackman 1980), and Gymnoclasiopa psilopina (Frey, 1933).

Nomenclature follows the current version of the Ephydridae section of Fauna Europaea (Zatwarnicki 2013). The subfamilies and the tribes are ordered systematically; genera within tribes and species within genera are listed alphabetically.

Number of species:

World: 1927 species and 63 nomina dubia (as of February 2014)

Europe: 340 species and 3 subspecies (Zatwarnicki 2013)

Finland: 112 species

Faunistic knowledge level in Finland: average

suborder Brachycera Macquart, 1834

clade Eremoneura Lameere, 1906

clade Cyclorrhapha Brauer, 1863

infraorder Schizophora Becher, 1882

clade Muscaria Enderlein, 1936

parvorder Acalyptratae Macquart, 1835

superfamily Ephydroidea Zetterstedt, 1837

EPHYDRIDAE Zetterstedt, 1837

DISCOMYZINAE Acloque, 1897

Discomyzini Acloque, 1897

DISCOMYZA Meigen, 1830

Discomyza incurva (Fallén, 1823)

Psilopini Cresson, 1925

PSILOPA Fallén, 1823

Psilopa compta (Meigen, 1830)

Psilopa leucostoma (Meigen, 1830)

Psilopa marginella Fallén, 1823

Psilopa nigritella Stenhammar, 1844

Psilopa nitidifacies Frey, 1958

Psilopa nitidula (Fallén, 1813)

Psilopa polita (Macquart, 1835)

TRIMERINA Macquart, 1835

Trimerina madizans (Fallén, 1813)

Trimerina microchaeta Hendel, 1932

= indistincta Krivosheina 2004

HYDRELLIINAE Robineau-Desvoidy, 1830

Atissini Cresson, 1942

ATISSA Haliday, 1839

Atissa limosina Becker, 1896

Atissa pygmaea Haliday, 1839

Hydrelliini Robineau-Desvoidy, 1830

HYDRELLIA Robineau-Desvoidy, 1830

Hydrellia albifrons Fallén, 1813

Hydrellia albilabris (Meigen, 1830)

Hydrellia cardamines Haliday, 1839

= baltica Frey, 1930

Hydrellia cochleariae Haliday, 1839

= flavicornis misid.

Hydrellia flaviceps (Meigen, 1830)

= discors Collin, 1966

= lapponica misid.

Hydrellia fulviceps (Stenhammar, 1844)

= chrysostoma misid.

Hydrellia fusca (Stenhammar, 1844)

Hydrellia griseola (Fallén, 1813)

= chrysostoma (Meigen, 1830)

Hydrellia laticeps (Stenhammar, 1844)

Hydrellia mutata (Zetterstedt, 1846)

Hydrellia obscura (Meigen, 1830)

= fascitibia misid.

Hydrellia pilitarsis (Stenhammar, 1844)

Hydrellia subalbiceps Collin, 1966

Hydrellia tarsata Haliday, 1839

Hydrellia thoracica Haliday, 1839

= modesta misid.

Notiphilini Bigot, 1853

DICHAETA Meigen, 1830

Dichaeta caudata (Fallén, 1813)

= brevicauda Loew, 1860

NOTIPHILA Fallén, 1810

sg. Agrolimna Cresson, 1917

Notiphila uliginosa Haliday, 1839

sg. Notiphila Fallén, 1810

Notiphila annulipes Stenhammar, 1844

Notiphila aquatica Becker, 1896

Notiphila brunipes (Robineau-Desvoidy, 1830)

= brunnipes emend.

Notiphila cinerea Fallén, 1813

Notiphila dorsata Stenhammar, 1844

Notiphila graecula Becker, 1926

= maculata misid.

Notiphila major Stenhammar, 1844

Notiphila pollinosa Krivosheina, 1998

Notiphila riparia Meigen, 1830

GYMNOMYZINAE Latreille, 1829

Gymnomyzini Latreille, 1829

ATHYROGLOSSA Loew, 1860

sg. Athyroglossa Loew, 1860

Athyroglossa glabra (Meigen, 1830)

MOSILLUS Latreille, 1804

Mosillus subsultans (Fabricius, 1794)

Lipochaetini Becker, 1896

GLENANTHE Haliday, 1839

Glenanthe fuscinervis Becker, 1896

= ripicola auct. nec Haliday, 1839

Hecamedini Mathis, 1991

ALLOTRICHOMA Becker, 1896

Allotrichoma bezzii Becker, 1896

= laterale misid.

Ochtherini Dahl, 1959

OCHTHERA Latreille, 1802

Ochthera manicata (Fabricius, 1794)

Ochthera mantis (De Geer, 1776)

Discocerinini Cresson, 1925

DISCOCERINA Macquart, 1835

Discocerina obscurella (Fallén, 1813)

DITRICHOPHORA Cresson, 1924

Ditrichophora calceata (Meigen, 1830)

Ditrichophora fuscella (Stenhammar, 1844)

GYMNOCLASIOPA Hendel, 1930

Gymnoclasiopa aurivillii (Becker, 1896)

Gymnoclasiopa bohemanni (Becker, 1896)

Gymnoclasiopa cinerella (Stenhammar, 1844)

= pulchella misid.

Gymnoclasiopa nigerrima (Strobl, 1893)

Gymnoclasiopa psilopina (Frey, 1933)

HECAMEDOIDES Hendel, 1917

Hecamedoides glaucellus (Stenhammar, 1844)

Hecamedoides unispinosus (Collin, 1943)

POLYTRICHOPHORA Cresson, 1924

Polytrichophora duplosetosa (Becker, 1896)

ILYTHEINAE Cresson, 1943

Hyadinini Philips et al. in Cresson, 1949

AXYSTA Haliday, 1839

Axysta cesta (Haliday, 1833)

HYADINA Haliday, 1839

Hyadina guttata (Fallén, 1813)

Hyadina humeralis Becker, 1896

Hyadina rufipes (Meigen, 1830)

= nitida (Macquart, 1835)

Hyadina scutellata (Haliday, 1839)

LYTOGASTER Becker, 1896

Lytogaster abdominalis (Stenhammar, 1844)

NOSTIMA Coquillett, 1900

Nostima picta (Fallén, 1813)

PELINA Haliday, 1839

Pelina aenea (Fallén, 1813)

Pelina aenescens (Stenhammar, 1844)

PHILYGRIA Stenhammar, 1844

Philygria femorata (Stenhammar, 1844)

= posticata misid.

Philygria flavipes (Fallén, 1823)

Philygria interstincta (Fallén, 1813)

= maculipennis (Robineau-Desvoidy, 1830)

= sexmaculata Becker, 1896

Philygria obtecta Becker, 1896

Philygria vittipennis (Zetterstedt, 1838)

= nigricauda Stenhammar, 1844

= trilineata De Meijere, 1907

Ilytheini Cresson, 1943

ILYTHEA Haliday, 1839

Ilythea spilota (Haliday in Curtis, 1832)

EPHYDRINAE Zetterstedt, 1837

Parydrini Wirth & Stone, 1956

EUTAENIONOTUM Oldenberg, 1923

Eutaenionotum guttipenne (Stenhammar, 1843)

PARYDRA Stenhammar, 1844

= Napaea Robineau-Desvoidy, 1830 preocc.

sg. Chaetoapnaea Hendel, 1930

Parydra arctica Clausen, 1971

Parydra fossarum (Haliday, 1833)

Parydra mitis (Cresson, 1930)

Parydra nigritarsis Strobl, 1893

Parydra pusilla (Meigen, 1830)

Parydra quadripunctata (Meigen, 1830)

sg. Parydra Stenhammar, 1844

Parydra aquila (Fallén, 1813)

Parydra coarctata (Fallén, 1813)

Parydra nubecula (Becker, 1896)

Ephydrini Zetterstedt, 1837

CALOCOENIA Mathis, 1975

sg. Leptocoenia Mathis, 1975

Calocoenia paurosoma (Sturtevant & Wheeler, 1954)

COENIA Robineau-Desvoidy, 1830

Coenia curvicauda (Meigen, 1830)

Coenia palustris (Fallén, 1823)

Coenia vulgata Krivosheina, 2001

EPHYDRA Fallén, 1810

Ephydra macellaria Egger, 1862

Ephydra riparia Fallén, 1813

Ephydra scholtzi Becker, 1896

= krogerusi Frey, 1930

PARACOENIA Cresson, 1935

Paracoenia fumosa (Stenhammar, 1844)

SETACERA Cresson, 1930

Setacera aurata (Stenhammar, 1844)

Setacera micans (Haliday, 1833)

Scatellini Wirth & Stone, 1956

HALOSCATELLA Mathis, 1979

Haloscatella dichaeta (Loew, 1860)

LAMPROSCATELLA Hendel, 1917

Lamproscatella sibilans (Haliday, 1833)

LIMNELLIA Malloch, 1925

Limnellia fallax (Czerny, 1903)

Limnellia quadrata (Fallén, 1813)

Limnellia stenhammari (Zetterstedt, 1846)

PHILOTELMA Becker, 1896

Philotelma defectum (Haliday, 1833)

Philotelma nigripenne (Meigen, 1930)

SCATELLA Robineau-Desvoidy, 1830

sg. Neoscatella Malloch, 1933

Scatella crassicosta Becker, 1896

Scatella silacea Loew, 1860

Scatella subguttata (Meigen, 1830)

sg. Scatella Robineau-Desvoidy, 1830

Scatella obsoleta Loew, 1861

= callosicosta Bezzi, 1895

Scatella paludum (Meigen, 1830)

Scatella stagnalis (Fallén, 1813)

Scatella tenuicosta Collin, 1930

SCATOPHILA Becker, 1896

Scatophila caviceps (Stenhammar, 1844)

Scatophila contaminata (Stenhammar, 1844)

= halterata Becker, 1896

Scatophila cribrata (Stenhammar, 1844)

Scatophila despecta (Haliday, 1839)

= hamifera Becker, 1896

Scatophila iowana Wheeler, 1961

Scatophila mesogramma (Loew, 1869)

Scatophila noctula (Meigen, 1830)

= flavitarsis (Zetterstedt, 1846)

= laevigata (Loew, 1860)

= silesiaca Becker, 1896

Scatophila quadriguttata (Meigen, 1830)

= variegata (Loew, 1860)

Gymnoclasiopa aurifacies (Strobl, 1893) misidentified

Gymnoclasiopa plumosa (Fallén, 1923) misidentified

Hyadina nigricornis Frey, 1930 not found within present borders

Hydrellia argyrogenis Becker, 1896 misidentified

Hydrellia concolor (Stenhammar, 1844) misidentified

Hydrellia flavicornis (Fallén, 1823) misidentified

Hydrellia incana (Stenhammar, 1844) misidentified

Hydrellia meigeni Zatwarnicki, 1988 misidentified

= albiceps (Meigen, 1830) preocc.

Hydrellia nympheae (Stenhammar, 1844) misidentified

Hydrellia tibialis Cresson, 1917 not found within present borders

= diadema Frey, 1930

Notiphila stagnicola (Robineau-Desvoidy, 1830) misidentified

Psilopa pulicaria (Haliday, 1839) misidentified

Scatella lutosa Haliday, 1833 misidentified

Gymnoclasiopa aurivillii (Becker, 1896) is probably a junior synonym of Gymnoclasiopa nigerrima (Strobl, 1893).

Hydrellia. At least two additional species occur in Finland but their proper names are still under investigation.